13-letter words containing a, r, i, o, s, t
- ornamentalism — the desire or tendency to feature ornament in the design of buildings, interiors, furnishings, etc.
- ornamentalist — A person who ornaments.
- ornithischian — any herbivorous dinosaur of the order Ornithischia, having a pelvis resembling that of a bird. Compare saurischian.
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthographies — Plural form of orthography.
- orthosilicate — a silicate mineral
- ostracisation — Alternative form of ostracization.
- ostracization — to exclude, by general consent, from society, friendship, conversation, privileges, etc.: His friends ostracized him after his father's arrest.
- outlaw strike — wildcat strike.
- ovariectomies — Plural form of ovariectomy.
- over-cautious — excessively or unnecessarily cautious: Sometimes it doesn't pay to be overcautious in business.
- over-estimate — to estimate at too high a value, amount, rate, or the like: Don't overestimate the car's trade-in value.
- over-standing — overreach (def 13).
- overambitious — having ambition; eagerly desirous of achieving or obtaining success, power, wealth, a specific goal, etc.: ambitious students.
- overassertion — assertion of something to an excessive or unnecessary degree
- overassertive — excessively assertive, esp in an unpleasant way
- overdramatise — Alternative spelling of overdramatize.
- overestimated — Simple past tense and past participle of overestimate.
- overestimates — Third-person singular simple present indicative form of overestimate.
- overhastiness — the condition of being overhasty
- overstability — the state of being excessively stable
- overstimulate — to stimulate too much
- painted horse — paint (def 6).
- palaeocrystic — consisting of former glacial formation
- pantisocratic — relating to pantisocracy
- paper profits — an unrealized profit due to the appreciation of something owned but not yet sold.
- paradise lost — an epic poem (1667) by John Milton.
- parasitoidism — the feeding by certain insect larvae on host tissues such that the host remains alive until larval development is complete and then usually dies.
- parrot's-bill — a showy, vinelike plant, Clianthus puniceus, of New Zealand, having clusters of eight white-streaked, crimson flowers.
- parthian shot — a sharp, telling remark, act, gesture, etc., made in departing.
- passion fruit — any edible fruit of a passionflower, as the maypop.
- past anterior — a pluperfect verb (in French)
- past historic — the simple past
- pathomorphism — abnormal morphology.
- patriot's day — the third Monday in April, a legal holiday in Me. and Mass. commemorating the battles of Lexington and Concord (April 19, 1775)
- patriots' day — the anniversary of the battles of Lexington and Concord (1775), celebrated the third Monday in April: a legal holiday in Massachusetts and Maine.
- patripotestal — Anthropology. of or relating to the authority exercised by a father or a father's blood relatives.
- periodicalist — a writer of articles for periodicals
- perissodactyl — having an uneven number of toes or digits on each foot.
- perlustration — the act of perlustrating; a thorough inspection or survey, esp of letters for purposes of surveillance
- perscrutation — a very careful exploration or inspection
- perseveration — the act or process of perseverating.
- personalistic — Also called personal idealism. a modern philosophical movement locating ultimate value and reality in persons, human or divine.
- personalities — the visible aspect of one's character as it impresses others: He has a pleasing personality.
- petit treason — the killing of a husband by his wife, of a lord by his servant, or of an ecclesiastic by a subordinate ecclesiastic.
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- photo-sharing — the publishing of digital photographs on the internet
- phraseologist — a person who treats of or is concerned with phraseology.
- physiotherapy — physical therapy.
- phytosanitary — of or relating to the health of plants